Health Sciences 2300A/B Lecture Notes - Inferior Vena Cava, Left Coronary Artery, Pulmonary Valve
28 Feb 2013
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Document Summary
Understand the valve and arteries around the heart in the labs. Unique organ because its constantly active and beating. Works in isolation, when outside factors hinder its ability to function properly- cardiovascular problems being to occur. Heart will beat on its own, as long as its provided with oxygen and nutrients it needs it will beat forever. Hinder return of blood to the heart begin to disorganize return of blood back to heart, heart strives to overcome this by becoming larger and be more forceful- imbalance occurs prior to heart attack. Engine of the body- runs body and when it starts to decrease in trouble. Apex - points downwards and at an oblique angle. Heart constantly beats within the sac and rubbing against structures causing friction around the heart that you do not want (inflammatory response) Sac filled with fluid to rescue friction - function of the sac to decrease friction.
